[tonyzmanutd]

What is the mass of:

0.060 mol of ethane (C2 H 6)?

Please show working out also. Thankyou.

[Grundalizer]

Seventeen

[tonyzmanutd]

Seventeen

That's wrong and even if right doesn't help me.

[Schrödinger]

What is the mass of:

0.060 mol of ethane (C2 H 6)?

Please show working out also. Thankyou.

Do you know what the mass of 1 mole of ethane is?

Hint : Molecular mass is expressed in g mol^-1

[Evaldas]

We have:
n(C2H6) = 0.06 mol
We need to find:
m(C2H6) - ?
Solution:
M(C2H6) = 2 x 12 + 6 x 1 = 24 + 6 = 30 g/mol (to count this use the periodical table)
m = M(C2H6) x n(C2H6) = 30 g/mol x 0.06 mol = 1.8 g

[Grundalizer]

I know, I was just trying to be funny, didn't feel like helping you

[JGK]

Personally, I'd have said 42 was the answer.

I'd also suggest that the OP read the forum rules. he/she's lucky Evaldas turned up to spoon feed the answer thus saving all that tiresome learning